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Finding the Fourth Proportional to 93,080.88, 128,410.02 and 62,856.54

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Solution

The fourth proportional to 93,080.88, 128,410.02 and 62,856.54 is: 86,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,080.88 : 128,410.02 = 62,856.54 : x
  2. Step 2: Convert to fraction form
    93,080.88/128,410.02 = 62,856.54/x
  3. Step 3: Cross multiply
    93,080.88x = 128,410.02 × 62,856.54
  4. Step 4: Simplify right side
    93,080.88x = 8,071,409,558.53
  5. Step 5: Solve for x
    x = 8,071,409,558.53/93,080.88
  6. Step 6: Final answer
    x = 86,713.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.